What percentage of North American frogs and toads are in trouble?

Answers

Answer 1

Answer:

The decline rate ranges from 2.7 to 3.79


Related Questions

Mirgrating definition (in own words not from google)

Answers

In my own words... Migrating means like you're migrating another country. For example: Birds migrate another countries and the birds you never seen before. Some people migrating another countries and another.

I hope this one helps

The areas on the surface of the sun that are exploding and releasing huge amounts of energy are called
A)
coronas
B)
prominences.


C)
photospheres.
D)
solar flares

Answers

C)photospheres is the correct answer

Answer:

D)

solar flares

Explanation:

got it right

Most plants grow in the A horizon true or false​

Answers

Answer: True

Explanation: A HORIZON- This is the layer that we call "topsoil" and it is located just below the O Horizon. This layer is made up of minerals and decomposed organic matter and it is also very dark in color. This is the layer that many plants roots grow in.A HORIZON- This is the layer that we call "topsoil" and it is located just below the O Horizon. This layer is made up of minerals and decomposed organic matter and it is also very dark in color. This is the layer that many plants roots grow in.

Hope this helps

True Took the test about this :D

Why is water specific heat important to life on earth

Answers

Water is able to absorb a high amount of heat before increasing in temperature, allowing humans to maintain body temperature.

Nuclear reactions result in tremendous amounts of
a. uranium.
b. energy
C. fission.
d.mass.
Please select the best answer from the choices provided

Answers

Answer: b. energy

Explanation:

Which of the following BEST describes the results of the Embargo Act?

Answers

Answer:

there are no options but the embargo act of 1897 was a general trade embargo on all foreign nations

Answer:

The United States government closed all trade with Britain.

Explanation:

Write down the secretion, function and deficiency disorders caused by the following gland.
(i) Pancreas (ii) Pituitary (iii) Thyroid gland (iv) Adrenal gland.

Answers

Answer:

(I) pancreas - it secretes insulin

it's function is to regulate the sugar levels in blood

if it does not function properly it causes diabetes (sugar)

(ii)pituitary- it secrets growth hormone

it's function is to regulate the growth in human body

if it produces lots of hormone then the body will increase a lot in size known as gigantism

if it produces very less hormone then the body will not increase in size and will be very short known as dwarfism

(III)thyroid gland-it secretes thyroxin

its function is to maintain metabolism growth

lack of iodine makes this gland swell up known as goitre.

(iv)Adrenal gland - it secrets adrenaline

it's function is to help us prepare and respond to stressful situations

because of its malfunction the body does not get enough hormones.

Hope it helps you

1a Make a claim: What happens to orbital time of the planet as the mass of the sun
increases?

Answers

Answer:

It causes a decrease in the orbital period.

Which is not a topic of biology?
a. the relationship between fungi and trees

b. the distribution of sand on an ocean floor

c. the chemicals at work in the stomach

d. the speed at which a hummingbird flies

Answers

Answer:

B the distribution of sand on an ocean floor

Explanation:

B
Because it has nothing to do with biology

Someone please help this should give u 100 points

Answers

Answer:

development I think. I'm not sure but that's my best answer.

Answer:-

The cell wall, nucleus, vacuoles, mitochondria, endoplasmic reticulum, Golgi apparatus, and ribosomes are easily visible in this transmission electron micrograph.

can someone please help me with this question

Answers

Answer:

C

Explanation:

which is one benefit that mangrove trees provide to surrounding coastal wetlands​

Answers

the best benefit is costal waters

Answer:

They hold soil in place

Explanation:

took it on edge

PLS HELP ITS AN EMERGENCY PLZZZZ ILL DO ANYTHING PLSS ITS FOR 50 POINTS PLSSSSSS

Answers

question 1: im not completely sure but either A or B. but i would go with A
question 2: B-calvin cycle
question3: B-splitting carbon dioxide.
question 4: B-chlorophyll

A human body cell has 46 chromosomes. How many chromosomes will each of its daughter cells have after mitosis and cytokinesis?

Group of answer choices

92

46

0

23

Answers

It’s 23 pairs of chromosomes or just 46 chromosomes. Hope this helps

20 POINTS!!!! Please help

Answers

Answer:

Explanation:

Try using google! slowly you will find your answer!

Approximately how many elements accour naturally on earth?

Answers

I belive that the elements 1 through 92 occur naturally on Earth, except for elements 43 and 61, although these are only found in very limited concentrations. The elements mostly on the periodic table that accompany uranium are generated only chemically and are classified as transuranium or transuranic components.


i don’t understand the layout and what it’s asking. what is number 1 asking me to label??? i’m very confused please help.

Answers

Answer:

For #1 the answer is sucrase

Explanation: because sucrase breaks down sucrose. So the answer for number 2 is sucrose

Which statement illustrates an exception to the concept that the cell is the unit of structure and function of all living things?
A)The cell is a complex chemical factory
B)Viruses contain genetic information but lack other cellular components.
C)lysosomes contain hydrolytic enzymes
D)Cells that possess a cell wall are non-living

Answers

Answer:

I think the answer is d, as the cell possess a cell wall are non living

. What happens to the enzyme activity when the body' emperature is 5 oC off its set-point?​

Answers

Answer:

At low temperatures enzyme activity is low because the enzyme and substrate molecules have less kinetic energy so there are fewer collisions between them.

Explanation:

How does pollution affect marine life? a. Pollution causes a decrease in phytoplankton populations and therefore a decrease in the occurrence of algal blooms. b. Pollution causes destruction of coral reefs, which are important sources of shelter and breeding for marine animals. c. Soaps, detergents, and plastics in the ocean decrease the acidity of ocean water, leading to a decrease in carbonate levels. d. Pollution affects organisms close to the shoreline, but does not affect marine organisms far from the shore.

Answers

Answer:

b

Explanation:

According to the question, Pollution causes destruction of coral reefs, which are important sources of shelter and breeding for marine animals.

How does pollution affect marine life?

Fish, seabirds, sea turtles, and marine mammals can become entangled in or ingest plastic debris, causing suffocation, starvation, and drowning.

Thus, the option "B" is correct.

To learn more about the pollution click here:

https://brainly.com/question/23857736

In scientific notation, a number is expressed as a value between 1 and 10
multiplied by a power of 10 *
True or false

Answers

The answer is true

Explanation:

The definition of scientific notation is: The method of writing very large or small numbers as a product of a number greater than or equal to 1 and less than 10 multiplied by a power of 10

Hope this helped!

The given statement about scientific notation is true which states that in scientific notation, a number is expressed as a value between 1 and 10 multiplied by a power of 10 .

What is scientific notation?

Scientific notation is defined as a way of expressing numbers which are too large or too small so that they can be easily written in decimal form. It can be referred to the scientific form or the scientific index form or even the standard form.

Base ten notation is used by scientists, engineers as it helps in simplification of arithmetic operations. It contains the significant figures which include all non-zero numbers , the zeroes between significant digits and zeroes which are needed to be significant.

In scientific notation, the base should always be ten. The exponent should be a non-zero integer and it can be either positive or negative.

Learn more about scientific notation,here:

https://brainly.com/question/18073768

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What is mitosis?

the part of cell division when the chromatids separate

the time in between when cells divide

the part of cell division when two separate nuclei form

cell division when a parent cell divides into four cells

Answers

Answer:

the part of cell division when 2 nuclei form.

Explanation:

Answer:

I had took this quiz and had the same question and options, I also got a 100% on the quiz so trust me. The correct answer would be "the part of cell division when two separate nuclei form"

Explanation:

Which is the role of the electron transport chain in the process of photosynthesis? A. Cycling electrons between photosystem and photosystem ll B. Adding energy to the electrons that enter photosynthesis C.Carrying electrons from photsystem I1, to photosystem to NADP O D. Removing electrons from the chloroplasts​

Answers

Answer:

c.

Explanation:

Because youcaring electrons from photosystem II, to photosystem I, to NADP+

I took this test about it hope that helps :D

The role of the electron transport chain in the process of photosynthesis will be carrying electrons from photosystem 1, to photosystem to NADP. The correct option is C.

What is electron transport chain?

An electron transport chain is a collection of protein complexes and certain other compounds that donate electrons from electron donors to electron acceptors via redox reactions and couple this electron transfer with the transfer of protons across a membrane.

Photosystems I and II are protein complexes found in the thylakoid membrane.

Their function is to capture high energy electrons from chlorophyll and pass them on to a series of electron carriers before splitting water to form oxygen and hydrogen ions and producing NADPH.

Electron transport contributes to the formation of a proton gradient, which drives ATP production and also stores energy in the reduced coenzyme NADPH.

This energy is used to power the Calvin Cycle, which produces sugar and other carbohydrates.

Thus, the correct option is C.

For more details regarding electron transport chain, visit:

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I have to find two words for an acrostic poem and it’s about atmosphere and I need a word that starts with R and E?

Answers

ROBERTO

Rebellious, going against the grain
Oomph, you have a magnetic draw
Buoyant, abound with energy
Enchanting, a charming presence
Reassuring, a comforting presence
Trustworthy, your word is good as gold
Obliging, willing to accommodate


I don’t know for E


Graph A represents that the rate of photosynthesis..

Answers

I think it is c.
Tell me if I am right or wrong

Answer:

Hello!!! Princess Sakura here ^^

Explanation:

Choice 3 is correct because if you take a look at graph A you see that it does indeed increase, but only to a certain point then the line stops increasing.

Carlos and Veronica lead very similar lifestyles. They both run every day and eat healthily, but they both have smoked since they were 16. Carlos was diagnosed with lung cancer when he was 48, but Veronica never got cancer.
Which most likely explains why Carlos got cancer but Veronica did not?

O Veronica leads a healthier lifestyle than Carlos

O Carlos has a gene for cancer that was triggered

O Veronica has a gene for cancer that Carlos does not

O Carlos leads a healthier lifestyle than Veronica

Answers

Answer:

B.  gene for cancer

I'm not 100% sure, but I'm like 90% sure.

Would a group of alligators that live in a particular wildlife refuge be considered a population or a community? Explain Your Answer.

Answers

It would be a population because it is pertaining to only one species

what do you mean by physical quantity​

Answers

Answer:

A physical quantity is a property of a material or system that can be quantified by measurement.

Which of the following best describes how a channel protein moves materials across the membrane? A)They provide a carrier for specific molecules to bind to and cross the membrane via endocytosis. B)They provide a passage for specific molecules to cross the membrane via passive transport. C) They provide a tunnel for solutes to cross the membrane via active transport. D) They provide energy needed for solutes to cross the membrane via facilitated diffusion.

Answers

Answer:

I would like to say A.......

A. From what I remember.

Four of the six kingdoms are compromised of organisms that contain
eukaryotic cells. Which structure in a cell would give you the BEST
evidence that the cell is eukaryotic? *
O Ribosome
O Genetic material
O
Nucleus
O Cell membrane

Answers

Answer:

The best evidence that a cell is eukaryotic is the presence of the cell structure called the nucleus.

Explanation:

The most significant difference between eukaryotic and prokaryotic cells is that the former have a nucleus, where they store genetic information in the form of DNA.

The nucleus of eukaryotic cells occupies approximately the center of the cell and is a structure associated with the endomembrane system. Its function is to control cell activity, and its genetic material is duplicated before cell division.

In prokaryotic cells, in the absence of a nucleus, the genetic material is dispersed in the cellular cytoplasm.

Regarding the other options:

    Both cell types, eukaryotes and prokaryotes, have ribosomes, genetic material and cell membrane.

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