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2 years ago

What is 1 through 4 because I don't understand it

Biology

1 answer:

horrorfan [7]2 years ago

8 0

The first one is a: mitosis produces two genetically identical daughter cells.

The second one is b: prophase

The third one is a: interphase

The fourth one is c: metaphase.

Mitosis is the process of body (somatic) cells splitting to form new body cells.
It contains 4 phases:
interphase, when the cell is between splits and the chromatin is bundled up.
prophase, when the chromatin doubles and condenses to chromasomes.
metaphase, when the chromasomes line up along the cell equator,
anaphase, where the double chromasomes split into separate groups,
telophase, when the groups form new nuclear envelopes and the cells split.

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45!! POINTS!! HELP PLS HELP!!

just olya [345]

Ans.1.

Cnidarians are lower eukaryotic organisms that include aquatic invertebrates, such as jelly fish, hydra and corals. These organisms show two types of body plan, medusa and polyp, both of which show radial symmetry.

Sponges belong to phylum Porifera that includes simpler asymmetric, marine organisms, with no body plan.

Thus, the correct answer is option). 'they have a medusa body form.'

Ans.2.

The corals are marine organisms that belong to phylum Coelenterata. Corals are often called as medicine chests of the sea as they are used for the treatment of various diseases, such as cancer, ulcers, and cardiovascular diseases.

Corals are easy to grow and provide a cost-effective way for collection, screening, and production of new medicines. So, there is an advantage of using corals to treat cancer and other disease as it is less expensive than drugs, which are synthetically produced in labs.

Thus, the correct answer is option). 'it is often less expensive to use than chemicals produced in a lab.'

Ans.3.

Both sponges and corals are used for the treatment of various diseases. For example, chemicals from bryozoans, such as bryostatin 1 are used for the cancer treatment in humans. Likewise, corals are also used for the treatment of cancer.

Thus, the correct answer is option). 'both are a source of chemicals that may be used to fight human diseases, such as cancer.'

Ans.4.

Most of the sponges do not release their eggs into the water, until they hatch. After fertilization, the zygote remains attached to the mother body and develops into larva, having cilia within its outer layer of cells. The cilia function in movement of larva and enable the larva to swim.

Thus, the correct answer is option). 'helping the larva swim out of the adult sponge.'

8 0

2 years ago

Can someone help me out with this one, if you do ill give you brainly and give extra points! Thank you :) I’m giving 100 points

Step2247 [10]

4.Neutral fats such as triglycerides offer the energy needed for cellular respiration(9kcal per gram)

5.Saturated fatty acids contain only single bonds in their molecules and are mainly found in animals.

6.Phospholipids are found in biological membranes.

7.Cholesteroleplay different roles like being the initial molecule for steroid hormone synthesis, decreasing the cell membrane permeability and aiding in lipids intestinal absorbtion

8.The two main parts of a lipid are glycerol and fatty acids.

9.A fat is saturated if none of the fatty acids present have double bonds.A fat is unsaturated if there is at least a double bond in the fatty acids

10.Steroids contain 4 rings and contain about 17 carbon atoms. Their main function is influencing the membrane fluidity and they are signaling molecules.

11.The role of wax is for example in the ear removing the impurities and protecting the eardrum.

12.Carbohydrate molecules offer 4kcal per gram while fat molecules offer 9kcal per gram. Lipids store more energy

Proteins

13.Proteins represent about 18% of the cell's mass.

14.Proteins are built from amino acids.

15.We have 20 amino acids in our bodies

16.The basic structure of an amino acid is based upon an amino group(-NH2), a carboxyl group (-COOH) and a radical(-R) that differs in every amino acid.

17.The secondary structure of a protein can either be α-helices or β folds.

Carbohydrates

18.Carbohydrates contain carbon(C) hydrogen(H) and oxygen(O)

19.The ratio of carbon to hydrogen to oxygen is 1:2:1

20.Carbohydrates comprise about 10% of our body cell mass.

21.The smallest carbohydrate is called monosacharide

22.glucose fructose galactose ribose

23.in the picture

24.Isomers are compounds with the same molecular formula but different structures. In carbohydrates there are mainly optic isomers.

25.Disacharides are formed by joining two molecules of mono saccharides together and losing a water molecule.

26.maltose(glucose;glucose),succhrose(fructose;glucose),lactose(galactose;glucose)

27.cellulose-forms the cell wall of plant cells starch-used as storage of glucose in plant cells glycogen-used as storage for glucose in animal cells

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Most oceanic gas hydrates form when

algol13

A. is the answer. Hope this helps you! :p

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What would happen if the igneous rock was first exposed to energy from the sun

marin [14]

Answer:

If there is too much heat or pressure, the rock will melt and become magma. This will result in the formation of an igneous rock, not a metamorphic rock. Consider how granite changes form. Granite is an igneous rock that forms when magma cools relatively slowly underground

Explanation:

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Sergeu [11.5K]

Answer:

The phases of the Moon depend on its position in relation to the Sun and Earth. As the Moon makes its way around the Earth, we see the bright parts of the Moon's surface at different angles.

Explanation:

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