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iris [78.8K]
3 years ago
6

Wich structural adaptation would help a plant survive better in a shady environment

Biology
1 answer:
True [87]3 years ago
4 0

large leaves because the larger the leaves are the easier it is for the plant to take in sunlight.

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Using what you learned about ecological interactions think of an example of each interaction in which humans are involved
PSYCHO15rus [73]

a. Competition: Humans compete with all organisms for space.

b. Parasitism: Humans have many parasites: head lice, ticks, tapeworms, etc.

c. Mutualism: We have mutualistic relationships with all domesticated plants/animals.

d. Commensalism: Pigeons thrive in metropolitan ecosystems without really

affecting humans (except for being mildly disgusting).

8 0
3 years ago
Use the information from Parts B and C to solve this problem. If a rabbit of genotype AaBb is bred to a rabbit of genotype AaBb,
Kipish [7]

The question is incomplete and the complete question is

Suppose that ear length in rabbits is controlled by two additive genes, each of which has two alleles. A true-breeding female (aabb) with 6-cm ears is mated to a true-breeding male (AABB) with 16-cm ears.

Answer:

AABb or AaBB

Explanation:

We know that,

aabb genotype - 6 cm

AABB genotype- 16-cm

To calculate the length of earlobe contributed by each allele in a genotype is :

1. length of aabb/4 or 6/4= 1.5 cm (a and b contribute for 1.5 cm each)

2. Length of AABB/4 or 16/4= 4 cm (A and B contribute for 4 cm each)

Now to have the earlobe to be 13.5 cm long then the genotype must be

13.5 = 4+4+4+1.5 or A+A+B+b or A+a+B+B

Therefore, the genotype will be-either AABb or AaBB

3 0
3 years ago
Pls help asap!!!!!!!!!!!!!!!!!!!!!!!!
rosijanka [135]

Answer:

1.  the DNA of which has been modified using genetic engineering methods. In most cases, the aim is to introduce a new trait to the plant which does not occur naturally in the species.

2. GM crops are made through a process known as genetic engineering. Genes of commercial interest are transferred from one organism to another. Two primary methods currently exist for introducing transgenes into plant genomes. The first involves a device called a 'gene gun'.

3. Crops do not damage the environment simply because they are GM. Some farming practices, such as the overuse of herbicides resulting in the excessive eradication of wild plants from farmland have been shown to harm the environment. These problems are similar for non-GM and GM crops.

3 0
3 years ago
What is an explanation of why producers are always found at the lowest tropical level
kupik [55]
Because they supply much energy to the food by preparing their own food because the above one can't prepare it own their own
5 0
3 years ago
Read 2 more answers
Determine whether each of the following is a characteristic of DNA, RNA, or both.
jenyasd209 [6]

Is single-stranded:  Characterizes especially RNA

Single-stranded or single-stranded defines a nucleic acid molecule (DNA or RNA) that is unmatched to another complementary molecule. It is therefore a single strand of nucleic acid.


Messenger RNA is single-stranded because it consists of a single strand and is not paired with another complementary nucleic acid strand. Nucleic acids paired with a complementary strand, such as genomic DNA, are called double-stranded because they are composed of two strands.


The presence of single-stranded DNA is a key to classifying DNA viruses. The first single-stranded DNA virus identified was a phage. The single-stranded nature of its genome made it possible to study the replication of DNA and to carry out the first sequencing experiments.


Contains nitrogenous bases: concern both of DNA and RNA.

Nitrogen bases, or nucleobases or even nucleobases, are nitrogenous organic compounds present in nucleic acids in the form of nucleotides in which they are linked to an ose, ribose in the case of RNA and deoxyribose in the case of DNA.


Contains uracil: concerns especially RNA.

Uracil (usually called "U") is a nucleic base (pyrimidine base) specific for RNA. It is found in this nucleic acid as nucleoside with uridine and nucleotide with uridine monophosphate or uridylate. While in DNA, adenine pairs with thymine (denoted "T"), it is uracil that binds to adenine in RNA by two hydrogen bonds.

Some authors hypothesize that the spontaneous deamination of cytosine in uracil, easily detectable in DNA (where U is not normally present) by the cell repair machinery of mutations, would explain the use of the base T in DNA. RNA (especially mRNA), a molecule regularly renewed in the cell, does not see its sequence controlled by repair systems, hence a conservation of the base U in this molecule. In this hypothesis, the base U is thus ancestral, the base T derived.


Contains adenine: concern both of DNA and RNA.

Adenine is an essential compound in the living. We find this molecule everywhere in the body, alone or arranged to several other different molecules, thus playing several roles. It is found in nucleotide form: in DNA it is dAMP for deoxyadenosine monophosphate or deoxyadenylate, and in RNA the AMP for adenosine monophosphate or adenylate, as well as in nucleoside form with deoxyadenosine and adenosine.


Is double-stranded: concern especially DNA.

A double-stranded double strand (db) is a molecule of D-deoxyribonucleic acid (DNA) or a molecule of double-stranded D-ribonucleic acid (RNA).


Double-stranded trait is a classification element of some DNA viruses.


It is not impossible to find double-stranded RNA (although it is rare).


Double-stranded RNA is an RNA composed of two complementary strands, in the manner of double-stranded DNA.


There are intracellular or extracellular double-stranded RNAs. Extra-cellular double-stranded RNAs are the genome of some viruses. For others of RNA (+) type, the replicase makes it possible to obtain a double-stranded RNA (tobacco mosaic virus) and thus to multiply. In eukaryotes, this type of RNA organization is involved in the initiation of the RNA interference process. Intracellular double-stranded RNAs are the essential components of the small subunit of the ribosome and therefore exist in a very large intracellular concentration. A high extracellular concentration of double-stranded RNA is synonymous with infection with a virus.


Is made of nucleotides: concern both of DNA and RNA.

Nucleic acids are macromolecules, that is, relatively large, relatively complex molecules. They enter the family of biomolecules since they are of great importance in the realm of life, "bios" meaning life in Greek.


Nucleic acids are polymers whose base unit, or monomer, is the nucleotide. These nucleotides are linked by phosphodiester bonds.


Pairing of adenine with thymine and guanine with cytosine in DNA. The hydrogen bonds are blue dotted.


Contains deoxyribose sugar: concern DNA only (hence its name deoxyribonucleic acid).

Deoxyribose, or more precisely 2-deoxyribose, is a deoxyazugar derived from a monosaccharide of five carbon atoms (pentose, of empirical formula C5H10O4), derived from ribose by loss of an oxygen atom at the 2 'hydroxyl, and therefore, it does not respond to the general formula of monosaccharides (CH2O) n. It is part of the DNA.


It is a crystalline and colorless solid, quite soluble in water. In its furanosa form (pentagonal ring) it is part of the nucleotides that constitute the chains of deoxyribonucleic acid (DNA).


4 0
3 years ago
Read 2 more answers
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