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Bad White [126]
3 years ago
7

Jacob is studying a population of wrens in Michigan. Over several years, he notices that the population always stabilizes at aro

und 45 individuals. What is the reason for this?
Biology
1 answer:
kompoz [17]3 years ago
8 0

Answer:

no population at maximum density............. The carrying capacity is the maximum number of individuals that the environment can sustain.

You might be interested in
What is the key difference among the 20 amino acids that are used to make proteins?
Ray Of Light [21]

Answer:

Attached R side groups

Explanation:

The proteins are one of the important biomolecules which are directly coded by the genetic material of an organism.

The proteins are composed of the amino acids which possess, an amine group, a carboxylic group and an attached side group called the R group.

It is the R group of an amino acid which determines whether the amino acid will a polar or a non-polar amino acid molecule thus it determines the properties of the amino acid in terms of chemical properties. The R side group are involved in the formation of bonds with the substrate of the environment and the tertiary structure of the proteins.

Thus, the presence of different R group is the key difference in 20 amino acids.

4 0
3 years ago
Read 2 more answers
What is found in chloroplasts of green algae? chlorophyll fungi diatoms ribosomes
charle [14.2K]
OK like most things chlorophyll is found in the chloroplasts of green algae
4 0
3 years ago
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A client has been diagnosed with diabetes mellitus. Which lab result would the practitioner expect?
ipn [44]

Answer:

A fasting blood sugar test. That measures the amount of glucose in the blood. It ranges from 75g/dl to 100g/dl.

Hyperglycemia a high blood glucose value above the normal range will suggest diabetes mellitus.

Explanation:

8 0
3 years ago
How many chromosomes does a body cell for the organism (egg and sperm) have?
DiKsa [7]
Growth and repair
creation of gametes (sex cells)
method of reproduction in unicellular organisms
Binary Fission - type of reproduction that occurs in bacterial cells, single celled organism splits and becomes two identical organisms

Chromosomes and DNA

Chromosomes are DNA wrapped around proteins to form an X-shaped structure.



The diagram will help you see the relationship.

1. Chromosomes are found in the nucleus
2. Chromosomes are made of DNA
3. Sections of chromosomes are called genes



DNA - deoxyribonucleic acid (it is the genetic code that contains all the information needed to build and maintain an organism)





Chromosome Structure







Chromosome Numbers

Each organism has a distinct number of chromosomes, in humans, every cell contains 46 chromosomes. Other organisms have different numbers, for instance, a dog has 78 chromosomes per cell.

Somatic Cells - body cells, such as muscle, skin, blood ...etc. These cells contain a complete set of chromosomes (46 in humans) and are called DIPLOID.

Sex Cells - also known as gametes. These cells contain half the number of chromosomes as body cells and are called HAPLOID

Chromosomes come in pairs, called Homologous Pairs (or homologs). Imagine homologs as a matching set, but they are not exacly alike, like a pair of shoes.

Diploid cells have 23 homologous pairs = total of 46

Haploid cells have 23 chromosomes (that are not paired) = total of 23

Homologous Chromosomes



Sex Determination

Chromosomes determine the sex of an offspring. In humans, a pair of chromosomes called SEX CHROMOSOMES determine the sex.

If you have XX sex chromosomes - you are female

If you have XY sex chromosomes - you are male

During fertilization, sperm cells will either contain an X or a Y chromosome (in addition to 22 other chromosomes - total of 23). If a sperm containing an X chromosome fertilizes an egg, the offspring will be female. If a sperm cell containing a Y chromosome fertilizes an egg, the offspring will be male.

Creation of a Zygote

When two sex cells, or gametes come together, the resulting fertilized egg is called a ZYGOTE

Zygotes are diploid and have the total 46 chromosomes (in humans)

Karyotype

A karyotype is a picture of a person's (or fetus) chromosomes. A karyotype is often done to determine if the offspring has the correct number of chromosomes. An incorrect number of chromosomes indicates that the child will have a condition, like Down Syndrome

Compare the Karyotypes below













Notice that a person with Down Syndrome has an extra chromosome #21. Instead of a pair, this person has 3 chromosomes - a condition called TRISOMY (tri = three)

Trisomy results when chromosomes fail to separate - NONDISJUNCTION - when sex cells are created. The resulting egg or sperm has 24 instead of the normal 23.

Other conditions result from having the wrong number of chromosomes:

Klinefelters Syndrome - XXY (sex chromosomes)

Edward Syndrome - Trisomy of chromosome #13
4 0
3 years ago
Which habitat is best for salmonberry growth? And why
nekit [7.7K]

Answer:

I think stream bank. It grows in moist places and wetlands, and is especially abundant along streamsides and riparian areas at elevations below 1400 m.

Explanation:

6 0
3 years ago
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