06.06.2021

What processes make up the general life cycle of spermatophytes? (Choose all that apply)
pollination
cell respiration
fertilization
germination

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Biology

Which was most likely an effect on society that resulted from improvements in blood handing during world war l and world war ll

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Answer:

Effective food supply was most likely an effect on society that resulted from improvements in blood handling during World War I and World War II.

Biology

One parrot species that feeds on large seeds nests is in the same tree as a parakeet that feeds on small seeds. How are the birds able to coexist?

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One parrot species that feeds on large seeds nests is in the same tree as a parakeet that feeds on small seeds, they occupy different niches.

Biology

Which could be the location where water emerges from the surface as a spring? 1 2 3 4

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A spring is a natural discharge point of subterranean water at the surface of the ground or directly into the bed of a stream, lake, or sea. Water that emerges at the surface without a perceptible current is called a seep. Wells are holes excavated to bring water and other underground fluids to the surface.

The image shows a cross-section of land scape.

Biology

Suppose there are five genes in pumpkins that work additively to affect pumpkin size. A homozygous lowercase allele pumpkin, aabbccddee, weighs 20 lb. Each capitalized allele additively affects the final phenotype by either adding or subtracting weight from the base pumpkin size. The effect of a single capitalized allele is listed in the table. AlleleEffect A +6 B −2 C −3 D +3 E +4 What would the potential size range be for pumpkin offspring produced from the cross between a parent with genotype aaBbCCDdEe and a parent with genotype AaBBCcddEe?

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Answer : 900 kg pumpkins

Biology

We have heard that seeds are high in protein. If we were to cut open a seed and look for this store of protein under the microscope ,in which cellular structure might we find it? Why does a seed need this store of protein?

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Need this store of protein:

The seed consists of three components: embryo, endosperm (sometimes perisperm), and seed-coat. Both endosperm and embryo are the products of double fertilization, whereas the seed-coat develops from the maternal, ovular tissues. The seed habit is a significant advancement in the evolution of higher plants.

Anatomy of seed :-

Need this store of protein: The seed consists of three components: embryo, endosperm (sometimes

Seed storage proteins provide a source of amino acids and reduced N necessary for germination and early growth of the seedling.

Biology

The maltose molecule can be broken down into two individual glucose molecules with the help of an enzyme produced within a cell. Which of the following changes is most likely to slow down this reaction? Adding more maltose molecules Increasing the volume of the cell Adding more of the enzyme Increasing the pH within the cell

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The maltose molecule can be broken down into two individual glucose molecules with the help of an enzyme produced within a cell.

D).increasing the pH with in the cell.

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The maltose molecule can be broken down into two individual glucose molecules with the help of an en

Biology

Which of the following distinguishes why large corporate farms are losing favor with the public? The farms have been raising their prices due to water shortages. The public is upset with the farms’ unnatural farming practices. The farms have been withholding food in order to receive more funding. The quality of the farms’ food has declined since the 1980s.

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Consumers are dissatisfied with the way that large corporate farms are treating nature's natural resources.

Biology

Drag the item from the item bank to its corresponding match. ITEM BANK: Move to Top ChromosomeDNADiploidEggGameteHaploi dMeiosisReplicationSexual ReproductionSperm This is an organism or cell with two sets of chromosomes. This is a haploid cell with half the reproductive information from the parent. This is a cell or organism having half of the diploid chromosome number, symbolized by "n". This is the structure in the cell nucleus that houses a cell s genetic information. This holds an organisms hereditary information. This is a process

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Chromosome DNA Diploid EggGamete Haploid Meiosis Replication Sexual Reproduction Sperm..
This is an organism or cell with two sets of chromosomes.
This is a haploid cell with half the reproductive information from the parent.
This is a cell or organism having half of the diploid chromosome number, symbolized by "n".

Biology

What are the roles of fungi? Check all that apply. Fungi can be used to develop medicine. Fungi are a food source for animals and humans. Fungi produce oxygen to breathe. Fungi destroy rocks and minerals. Fungi are natural recyclers. Fungi cause infections.

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Fungi are a food source for animals and humans. Fungi produce oxygen to breathe. Fungi destroy rocks and minerals. Fungi are natural recyclers.