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Answer:

Sperm have a well-protected head and a motor to help them travel.

Explanation:

Gametes are sexual cells. Organisms make use of gametes to sexually reproduce themselves. Male organisms produce gametes called SPERM while feale organisms produce gametes called EGG. Although both of these gametes function to sexually reproduce the organism that produces them, they have different morphological characteristics that supports their physiological function.

- The sperm cell is made up of two major parts namely: the head and the tail. The head of the sperm cell contains the nucleus, which houses the genetic material of the cell i.e. DNA. For this reason, the head is well protected. Also, the sperm contains a tail region, which is actually a flagellum that enables it to be motile i.e swim through the female reproductive part. The flagellum contains a structure called AXONEME, which is referred to as the MOTOR of the sperm cell.

Answer:

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Explanation:

Answer:

Unicellular organisms are made up of only one cell that carries out all of the functions needed by the organism, while multicellular organisms use many different cells to function. Multicellular organisms are composed of more than one cell, with groups of cells differentiating to take on specialized functions.

Answer:

B

Explanation:

This combines with a 4 carbon compound to start the cycle

Kreb's cycle or Tricarboxylic cycle is an enzyme-catalyzed reaction, in which ATP molecules are generated. The starting material for the cycle is pyruvic acid.

The correct answer is:

Option B. Pyruvic acid

Some of the features of Kreb's cycle are:

Thus, the starting material for the Kreb's cycle is pyruvic acid, which is converted into the acetyl Coenzyme A before entering the Kreb's cycle.

To know more about Krebs cycle, reefer to the following link:

https://brainly.com/question/13153590

Answer:

The organism's genotype encodes their phenotype because the genotype corresponds to the characteristic that is determined by genes —formed by fragments of DNA— which are transcribed into mRNA to be translated into amino acid sequences in the synthesis of proteins, determining the morphological and functional characteristics of an organism, that is, its phenotype.

Explanation:

Genotype corresponds to the genetic information contained in the DNA, according to the sequence of nucleotides in its molecular structure. This genotype includes characteristics or polymorphisms that define the appearance and function of living beings.

Each DNA molecule constitutes a chromosome, formed by genes —DNA fragments— each of which determines specific characteristics.

When DNA is transcribed into mRNA, information is being sent that is necessary for the incorporation of amino acids into a protein that is being synthesized. The proteins, in turn, determine morphological and functional characteristics that constitute the phenotype of an individual.

Answer: A : earthquake

Answer:

The function of the ovum is to carry the set of chromosomes contributed by the female and create the right environment to enable fertilization by the sperm. Ova also provide nutrients for the growing embryo until it sinks into the uterus and the placenta takes over

Explanation:

Answer:

D. Electrical - electromagnetic and thermal​

Explanation:

Energy is the capacity to do work, and it exists in various forms. Some of its forms are: nuclear energy, solar energy, electrical energy, mechanical energy, sound energy, light energy, heat/ thermal energy etc. These forms can be transformed from one to another. Example is the conversion of electrical energy into light energy and heat energy by an electrical Tungsten-bulb.

A space heater is an electrical device used for generation of majorly heat energy, thus it is powered by electrical energy. Therefore it transforms electrical energy into electromagnetic and thermal.

Answer: Yes

Explanation:

The circles are phosphate groups. The pentagons are deoxyribose sugars.

Answer:

Air is essential for almost all organisms.

Explanation:

Answer: 2. Air is essential for almost all organisms!

Explanation: People need air to breathe, plants need air to make food and breathe, and animals need air to breathe! Good luck! :D

Answer:

Microevolution is the change in allele frequencies that occurs over time within a population. This change is due to five different processes: mutation, selection (natural and artificial), gene flow, gene migration and genetic drift.

Explanation:

five different types of microscope

stereo microscope

compound microscope

inverted microscope

metallurgical microscope

and polarizing microscope

The answer is that the night sky changes because of Earth’s orbit around the Sun, and as you’ll see, this also explains the path called the ecliptic on the celestial sphere.

Answer:

They became different.

Explanation:

Since the populations were separated and were not able to interact, they could not reproduce. Eventually, mutations would work their ways into each of the separate populations of squirrels. Since the two populations can't mix their genes through breeding they will slowly start to get different. For example, one population could experience a mutation that changes the color of one animals in the one of the populations. This squirrel will spread its genes to its offspring and if it is a good trait then it will spread throughout the population. The other population will not experience a widespread invasion of this trait because the two populations can't breed.  

Answer:

1.to build up static electric

2.charging by friction.

3. by conduction and by Induction

Answer:

They form crystals

They have high melting points and high boiling points

They have higher enthalpies of fusion and vaporization than molecular compounds

They're hard and brittle

They conduct electricity when they are dissolved in water

They're good insulators

Explanation:

i hope this is what you need

Explanation:

Osmosis affects the cells differently. An animal cell will lyse when placed in a hypotonic solution compared to a plant cell. The plant cell has thick walls and requires more water. The cells will not burst when placed in a hypotonic solution. In fact, a hypotonic solution is ideal for a plant cell.

An animal cell survives only in an isotonic solution. In an isotonic solution, the plant cells are no longer turgid and the leaves of the plant droop.

The osmotic flow can be stopped or reversed, also called reverse osmosis, by exerting an external pressure to the sides of the solute. The minimum pressure required to stop the solvent transfer is called the osmotic pressure.

#it is correct, please don't report

Effects of osmosis on cells

Answer:

b. Enzymes always change their shape when they bind  to a molecule.

d. An enzyme’s shape is related to the shape of the  substrate it binds to.

Explanation:

Enzymes are proteins that are secreted by special cells in living organisms. They are the organic catalysts of biochemical reactions.

The role of the enzyme in the enzyme catalyzed reaction is to bring reactants together on its surface so as to have better interactions.

Enzymes have the capability to fit the substrate into an induced fit position.

The process by which enzymes change shape in a reaction is called the induced fit.

This way an enzyme holds the substrate tightly for the reactions to occur.

Answer:

True

Explanation:

The correct answer would be true.

A favorable economic condition in an area means that a large percentage of the population of the people in the area already have their basic needs met. According to Abraham Maslow, when basic needs are met, human needs graduate from basics to more sophisticated ones. Consequently, production efforts can be put into producing material that satisfies desires and not just needs.

Answer:

Plants are composed of eukaryotic cells.

Explanation:

Eukaryotic cells (as opposed to prokaryotic cells) have internal, membrane-bound organelles and a distinct nucleus that physically separates the genetic material of the cell from the all of the other parts of the cell. All protists, fungi, plants, and animals are composed of eukaryotic cells.

The characteristic that is most unique to plants is that they undergo the process of photosynthesis. Thus, the correct option for this question is B.

Photosynthesis may be defined as a type of process through which green plants and some photosynthetic algae synthesize their own food in the form of glucose with the help of carbon dioxide and water in the presence of sunlight.

The complete reaction of photosynthesis is as follows:

Plants are eukaryotic in nature and have a double membrane cell organelle that is known as Chloroplast. These cell organelles have a green-colored pigment known as chlorophyll that captures the sunlight and converts it into chemical form and accomplishes the process of photosynthesis.

Therefore, the characteristic that is most unique to plants is that they undergo the process of photosynthesis. Thus, the correct option for this question is B.

To learn more about Photosynthesis, refer to the link:

https://brainly.com/question/26568636

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Answer:

Which is an expected  result of the investigation?

The process of translation in the beetle is similar to other organisms, but involves a unique genetic code.

Explanation:

The process of translation in the beetle is similar to other organisms, but involves a unique genetic code.

Answer: gravity

Explanation:

Answer:

teamwork makes the dream work

Answer:

Photosynthesis and cellular respiration are connected through an important relationship. This relationship enables life to survive as we know it. The products of one process are the reactants of the other. Notice that the equation for cellular respiration is the direct opposite of photosynthesis:

Cellular Respiration: C6H12O6 + 6O2 → 6CO2 + 6H2O

Photosynthesis: 6CO2 + 6H2O → C6H12O6+ 6O2

Explanation:

(basic other info, they use sugars, co2, sunlight, and water)

Answer:

The cell wall _oval____ the shape of the cell/plant. The cell membrane ___is__ the entry and exit of __cell___.

Answer:

I believe stage 3 correct me if im wrong

Explanation:

Answer:

c. Stage 3

Explanation:

Answer:

More powerful computer technology

Explanation:

More powerful computer technology allowed the scientists to start mapping so much faster because powerful computer works very fast as compared to human brain. The activity or calculation which can be done by the human brain in hours, the computer done it in seconds due to its fast and quick response. So we can conclude from this discussion that powerful computer technology allowed the scientists to start mapping very fast.

Answer: A

Explanation:

Traits can be visible, when offspring look similar to the parents they have physical traits that have been passed down.

Answer:

The amniotic egg was an evolutionary invention that allowed the first reptiles to colonize dry land more than 300 million years ago. Fishes and amphibians must lay their eggs in water and therefore cannot live far from water. But thanks to the amniotic egg, reptiles can lay their eggs nearly anywhere on dry land.

Explanation:

An amniotic egg has a clump of nutrients that is used to sustain the embryo during development. This clump of nutrients is called the yolk, and the yolk sac encloses it.