What can pollen records tell us about climate change? PLS HELP OMGG

1 answer:

6 0

By analyzing pollen from well-dated sediment cores, scientists can obtain records of changes in vegetation going back hundreds of thousands, and even millions of years. Not only can pollen records tell us about the past climate, but they can also tell us how we are impacting our climate.

You might be interested in

The model of speciation that requires some time with geographic barriers between two populations, allowing evolution of reproduc

Volgvan

Answer:

The answer is a) allopatric speciation.

Explanation:

Allopatric speciation happens when a geographical or physical barrier is introduced in a population. After this, the reproductive isolation, genetic recombination and also random mutations can promote the speciation process, where at the end, there will be two separate species.

7 0

3 years ago

If I increase the temperature then the bacteria will grow faster

nlexa [21]

Answer:
2. temperature

Explanation:
The independent variable is the variable that you change. Since you are changing the temperature to find bacteria growth, bacteria growth is the dependent variable and ph level is the control variable.

6 0

3 years ago

A scientist would like to test the effect of heat on the function of a certain enzyme. Which would not be an appropriate first s

Gala2k [10]

Answer:

(3) completing a data table of expected results

Explanation:

Observation and research of the available literature about the process under study are some of the tasks done before experimentation. The data table of expected results is not to be made before any research.

Research and discussion on the basic information about the enzyme under study, the search of any experiments done on the same enzyme earlier gives insight about the enzyme. This is followed by making a hypothesis and setting the experiment to test the hypothesis.

4 0

3 years ago

Use of anabolic steroids leads to elevated concentrations of testosterone and testosterone derivatives. Prolonged use of anaboli

AlekseyPX

Answer:

The given blank can be filled with decrease in LH and FSH.

Explanation:

Anabolic steroids play an effective function in increasing the performance of an athlete. However, there are certain side-effects, which can exhibit extreme issues on the health of an individual. The use of anabolic steroids results in the supra-physiological concentrations of testosterone and its derivatives.

Via the feedback loop, the generation and discharging of LH and FSH get decreased. The enhanced application of anabolic steroids in comparatively greater concentrations will result in hypogonadotropic hypogonadism, with reduced serum concentrations of testosterone, LH, and FSH.

8 0

3 years ago

A genetics student is studying a plant that seems to have two Mendelian traits, flower color (red is dominant, and yellow is rec

allochka39001 [22]

Answer:

Here is the plato answer !!!

FS fs Fs fS

fs FfSs ffss Ffss ffSs

According to the Punnett square, 4/16 plants will have red flowers and green seeds.

So, (4 ÷16) × 100 = 25% chance of obtaining offspring with red flower and green seed.

Explanation: It's 100% right.

4 0

3 years ago