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4 years ago

Which statement explains the importance of maintaining a constant internal environment to ensure

Biology

1 answer:

Leviafan [203]4 years ago

5 0

An increase in temperature and pH can alter the specific shape of the enzyme.

Hopefully this helped and good luck.

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If a rock weighs 783 N on earth, what is its mass?

Delicious77 [7]

The answer is b. 79.9

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3 years ago

I need help on those two questions

Romashka [77]

6-C (breaks off)
7-C(they secrete acid that breaks away rocks)

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3 years ago

Please Help! A.S.A.P!! Will Mark Brainliest!

saveliy_v [14]

Answer:

Newer layers of earth form on top of older layers, so as we dig, we can see further back in time. Comparing the fossils between the layers can offer evidence of change.

Phyletic gradualism - slow, but constant gradual change; supported by transitional species in the fossil record

Punctuated equilibrium- long periods of no change followed by short periods of rapid change. Can also be supported by the fossil record when no transitional species are found.

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3 years ago

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In the diagram below you can see structures that work together to allow flowering plants to reproduce.

mart [117]

Complete question:

Several structures work together to allow flowering plants to reproduce. The diagram shows a typical flower.

Which answer correctly identifies the function of each structure or group of structures in the reproduction of the plant?

X- pollen production

Y- pollen transfer

Z- production of eggs

X- attraction of pollinators

Y- production of male sex cells

Z- egg production

X- production of eggs

Y- pollen transfer

Z- pollen production

X- production of eggs

Y- pollen production

Z- pollen transfer

Answer:

X- attraction of pollinators

Y- production of male sex cells

Z- egg production

Explanation:

Flowers are reproductive structures in charge of sexual reproduction through the production of seeds.

Z, Feminine reproductive structures:

The central structure is known as a carpel, also recognized as the pistil.
The base of the carpel forms the ovary, in which the eggs are produced and where the zygote develops.
The opposite extreme of the carpel is the stigma, in the superior part. The stigma is a sticky surface where the pollen grains get attached.
The ovary and the stigma are connected by a filament named style.

Y, Masculine reproductive structures:

The pollen grains, or male sex cells, are produced in the stamens.
The stamen has an anther where the pollen is produced, and a filament that provides support.

When mature, pollen grains are driven to the stigma of the same flower or other flowers of the species, where they stick. Once in the stigma, the pollen grains move to the ovary, where they meet the egg and fertilize. The zygote develops in the ovary.

X, External non-reproductive structures:

Flowers also have external structures known as petals and sepals. These structures are modified leaves whose principal function is to protect the flower´s fertile parts and attract pollinators. Petals characterize as having many different colors that make the flower more attractive to insects and some animals. When they visit a flower searching for their recompense, the flower´s pollen grains transfer to the insect´s body. The insect transports the pollen to the next visited flower, leaving it in the stigma of the second flower.

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3 years ago

If a plant with purple petals (PP) is crossed with a plant with white petals (pp), what is the phenotype for the F1 generation?

Nonamiya [84]

The genotype for the F1 generation is PURPLE PETALS.
In cross breeding, the offspring of the original generation in a cross are called F1 generation. When two breeding of a particular living organisms are crossed, then the F1 generation will be all the same.

8 0

3 years ago

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