Hawk, snake, rabbit, grass is a display of what

Answers

Answer 1

Answer: It is a display of a food chain. Hawk is the tertiary consumer, snake is the secondary consumer, rabbit is the primary consumer and grass is the primary producer

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Explain why hydrogen is a light gas whilst iron is a heavy solid ?

Answers

due to the atomic mass, different for every element, hydrogen is the lightest element and it's a gas at room temperature due to its properties like point of ebollition. iron is a heavy solid because it has a high atomic mass and a high point of fusion(temperature needed to melt it).

Which type of bacteria live in the roots of legumes?nitrogen-fixing bacteria
pathogenic bacteria
aerobic bacteria
rickettsia

Answers

nitrogen fixing bacteria called rhizobia

Answer:

The correct answer would be nitrogen-fixing bacteria.

Nitrogen-fixing bacteria live in symbiotic relationship in the roots of plants especially leguminous plants such as peanuts, soybean, pulses et cetera.

The symbiotic bacteria live in the root nodules of the plants.

It helps in fixing the atmospheric nitrogen and converts into the forms which can be used by plants.

In return, plants provide the bacteria with shelter and food (glucose).

Example of symbiotic bacteria would be rhizobia

Which of these processes is used to break down glucose into ATP that is usable by the cell?

Answers

here is a hint, mitosis is the division of cells.

What do we mean when we use the terms monohybrid cross and dihybrid cross? A) A monohybrid cross involves a single parent, whereas a dihybrid cross involves two parents.
B) A monohybrid cross produces a single progeny, whereas a dihybrid cross produces two progeny.
C) A dihybrid cross involves organisms that are heterozygous for two characters and a monohybrid cross involves only one.
D) A monohybrid cross is performed for one generation, whereas a dihybrid cross is performed for two generations.
E) A monohybrid cross results in a 9:3:3:1 ratio whereas a dihybrid cross gives a 3:1 ratio.

Answers

The answer is C) A dihybrid cross involves organisms that are heterozygous for two characters and a monohybrid cross involves only one.

A dihybrid cross considers two traits, while a monohybrid cross considers one trait to be inherited.
The other statements cannot be true because of the following:
A) Both monohybrid and dihybrid cross involves two parents.
B) There is more than one progeny in both monohybrid and dihybrid cross, and the number depends on parental genotypes.
D) Both monohybrid and dihybrid cross are performed for two generations.
E) A monohybrid cross results in a 3:1 ratio whereas a dihybrid cross gives a 9:3:3:1 ratio.

Which statement best describes the role of gene expression in cells?Question 1 options:

Cells destroy the DNA of genes that they do not use.

When cells divide in mitosis, they pass on only the genes that are required.

To become specialized, cells need to control the production of proteins coded for in their DNA.

All genetic information in a cell's DNA is fully expressed at all times.

Answers

The answer is To become specialized, cells need to control the production of proteins coded for in their DNA.

All genetic information in a cell's DNA is not fully expressed at all times. On the contrary, in different cell lines, different DNA segments are expressed at different times. Some genes are active in unspecialized cells and later deactivate, some are activated only in specialized cells, for example. These are facultative genes which are active when needed, unlike constitutive genes which are expressed continually. Therefore, to become specialized, cells need to control the production of proteins coded for in their DNA. DNA segments, however, remain in cell and are not destroyed. Also, during the mitosis, all genes are passed, not only required genes.

Answer:

To become specialized, cells need to control the production of proteins coded for in their DNA.

Explanation:

Which two areas are in the temperate zone, and which two areas have the coldest climates?artic circletropic of cancerequatortropic of capricornantartic circle?

Answers

The two areas that are in temperate zone area the circle tropic of cancer or the norther tropic and equator tropic of Capricorn or the southern tropic. These two zones is positioned where the sun can be directly overhead.
The two areas that have coldest climates are the arctic circle and antarctic circle.These areas are situated at the opposite poles of the earth where the temperature is at the lowest.

Answer:

The temperate zones are 2 and 4, and the coldest areas are 1 and 5.

Explanation:Trust me i got it right

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